Shuttle motion foe looms



- (No Model.) Sheets-Sheetl.

J. L. BROOK. SHUTTLE MOTION FOR Looms.

No. 400,742. Patented Apr. 2, 1889.

2 Sheets-Sheet 2.

(No Model.)

J. L. BROOK. SHUTTLE MOTION FORLOOMS.

Patented Apr. 2, 1889.

PATENT OEEicE.

. JOSEPH L. BROOK, OF SIMOOE, ONTARIO, CANADA.

SHUTTLE-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 400,742, dated April 2,1889.

Application filed May 21, 1888. Serial No. 274,575. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH L. BROOK, manufacturer, of the town ofSinicoe, in the county of Norfolk, in the Province of Ontario, Oanada,have invented a certain new and useful Improvement in Shuttle-Motionsfor Looms, of which the following is a specification.

The object of the invention isto provide simple and effective mechanismfor operating the pickers of a loom; and it consists, essentially, inconnecting each picker by a cord to a lever arranged to be put intomotion by friction-gear which moves only at stated intervals,substantially as hereinafter more particularly explained.

Figure 1 is a perspective view of a loomframe andits parts connectedwith the mechanism involved in my invention. Fig. 2 is an enlargeddetail of the shifting mechanism.

In the drawings, A is the lay of the loom, suitably pivoted at B in theusual manner, and operated by the crank-shaft O, to which it isconnected by the rods D. This crankshaft derives motion from the maindrivingshaft E through suitable gearing. On this driving-shaft E, I fixa grooved pulley, F, and connect this pulley by a cord, G, to a groovedpulley, H, fixed to the counter-shaft I. This counter-shaft I is carriedin suitable bearings and has fixed to it a friction-pinion, J. A groovedfriction-pulley, K, is journaled on a stud extending from a cross-piecefixed to the lay A. The grooved friction-pulley K engages with thefriction-pinion J, the former being grooved, so that the motion of thelay shall not disengage the contact between the two pulleys.

L is a lever pivoted to the lay A at M, and, extending across the faceof the friction-pulley K, is supported by the cords N, which areattached to its end, and after passing around the pulleys O the saidcords are connected at their other ends to the pickers P, carried on theguide-rods Q on opposite sides of the machine. When the pulley K is inthe position indicated in the drawings, a fiat side on its periphery isopposite to the pinion J. Consequently there is no contact between thetwo, and the pulley K remains stationary, although the pinion J isrevolving continuously during the operation of the machine.

R is a pin extending from the face of the until the pin R once morecomes in contact with the rod S,when the pulley K will be heldstationary until the rod S is withdrawn'from the pin R in the mannerhereinafter described. A stud, U, extends from the face of the pulley K,and is designed to strike and push down the lever L when the pulley Krevolves, as described. When the lever L is thus pushed down, thepickers P are caused to move quickly toward the center of the machine,and the shuttle V is instantly thrown across the lay by the picker withwhich it may at the time be in contact.

\Vith the View of causing the rodS to move from the pin R at the properperiods to operate the shuttle V, I provide the following simplemechanism: The rod S is held in suitable bearings, so that it maybemoved longitudinally, a spring, NV, being provided to hold the rod inits normal position in the path of the pin R. The other end of the rod Sengages with a pivoted lever, X, the upper end of which passes adouble-wedge-shaped plate, Y. The end of this wedge-shaped plate isconnected to a stud, Z, which is fixed to the link, a, supported on theframe I) by a stud, d, which passes through a vertical slot in the linka. The bottom of this link a has a spring, 6, connected to it, the lowerportion of which spring is fixed to the frame 17.

f is a bail fixed to the lay A and passing below the double-wedge-shapedplate Y. One wedge of this plate Y is horizontal, while the other wedgeis vertical, the former being in contact with the end of the lever X,while the latter is in contact with the bail f.

g is the lever by whichthe loom is put into and out of motion. To thislever g,I connect a wedge-shaped block, h, which projects below a pin,2', extending from the link a. When the lever g is moved so as to throwthe machine out of motion, the wedge-shaped block h presses upwardly onthe pin i, thereby raising the link a and with it the double-wedgeshapedplate Y, lifting the horizontal wedge of the plate Y clear of the end ofthe lever X, and thus allowing the lay to be moved to and fro withoutinterfering with the mechanism by which the shuttle is operated. hen thelever g is moved so as to start the machine, the block it is moved awayfrom the pin 2', and the spring (2 pulls the link a down until thehorizontal wedge of the plate Y is opposite to the lever X. \Vhen thelay is rocked away from the breast-beam j, the end of the lever X, whichis pivoted on the lay-A, is forced against the incline of the horizontalwedge formed on the plate Y. Consequently the said lever will be pushedover and its opposite end moved so as to pull the rod S clear of the pinR, thereby permitting the weight '1 to carry the pulley K in thedirection of the arrow in Fig. 1, thus carrying the flattened portion ofsaid pulley away from the pulley J and bringing the periphery ofsaidpulley into gear with the pinion J, whereby the stud U is caused tostrike the lever L and throw the shuttle, as before described. As thepulley K is to make one revolution at each stroke of the lay, I providethe vertical wedge on the plate Y, so that the bail f, which is fixed tothe lay A, presses against the said vertical wedge and raises the plateY, so that the horizontal wedge of the plate Y is carried clear of theend of the lever X, leaving the said lever free to be acted upon by thespring W, which pulls the rod S back into the plane of the pin R, whichstrikes against it and holds the pulley K until the next stroke of thelay, and so the motion goes on with regularity and pre cision.

\Yhat I claim as my invent-ion is- 1. In a loom, the combination, withthe main driving-shaft, a pulley having a flattened portion, as shown,and provided with a fixed projecting stud on its face, a pivoted leverextended across the face of said pulley, and the pickers connected bycords to said lever, of a friction-pinion revolving in contact with saidpulley and connected with the main drivingshaft, substantially as andfor the purpose specified.

2. The lay A, the weighted and flattened friction-pulley K, journaled ona stud fixed to the lay, the friction-pulley J, the main driving-shaft,connections between said pulley J and said shaft, thelongitudinally-mova'ble rod S, the stud U, extending from the face ofthe pulley K, and a pin, R, extending from the opposite side of thepulley K and passing the rod S, combined with the lever X, connected tothe rod S, the bail f, fixed to the lay, the wedge-shaped plate Y,pivoted in the frame of the machine and extended through said bail, thepickers, the pivoted lever L, extending across the face of the pulley K,and the cords N, connecting said lever L to the pickers, substantiallyas and for the purpose specified.

Toronto, April 27, 1888.

JOSEPH L. BROOK.

In presence of CHARLES C. BALDWIN, CHAS. H. RIcHEs.

